Fedrick J
Br J Prev Soc Med. 1974 Aug;28(3):164-71. doi: 10.1136/jech.28.3.164.
One-hundred-and-seventy infants resident in the Oxford Record Linkage Area and dying suddenly and unexpectedly in the five-year period 1966-70 were linked with the records concerning their delivery. For each of these cases three controls were chosen, matched for maternal age, parity, social class, legitimacy, and place and year of delivery. The files of general hospital admissions were scanned to identify admissions to the mothers during the pregnancy, and admissions to the infants, for both index cases and controls. Significant associations were found with short gestation, low birthweight, slight growth retardation, twin delivery, `insult' during pregnancy, induction of labour, neonatal jaundice, congenital defects, subsequent hospital admission, and month of birth. There was no association with breast feeding but some evidence for contact with other cases during hospital admission.
1966年至1970年的五年间，居住在牛津记录关联地区的170名婴儿突然意外死亡，这些婴儿的记录与他们的分娩记录相关联。针对每一个病例，选择了三名对照，对照在产妇年龄、胎次、社会阶层、合法性以及分娩地点和年份等方面进行了匹配。对综合医院的入院档案进行了筛查，以确定索引病例和对照的母亲在怀孕期间的入院情况以及婴儿的入院情况。发现与妊娠期短、低出生体重、轻度生长发育迟缓、双胎分娩、孕期“损伤”、引产、新生儿黄疸、先天性缺陷、随后的住院治疗以及出生月份存在显著关联。与母乳喂养没有关联，但有一些证据表明在住院期间与其他病例有接触。
